Let C be a circle with radius \(\sqrt{10}\) units and centre at the origin. Let the line x + y = 2 intersects the circle C at the points P and Q. Let MN be a chord of C of length 2 unit and slope –1. Then, a distance (in units) between the chord PQ and the chord MN is
1
2 - \(\sqrt{3}\)
2
3 - \(\sqrt{2}\)
3
\(\sqrt{2}\) - 1
4
\(\sqrt{2}\) + 1